| What: /sys/kernel/debug/nx-crypto/* | |
| Date: March 2012 | |
| KernelVersion: 3.4 | |
| Contact: Kent Yoder <key@linux.vnet.ibm.com> | |
| Description: | |
| These debugfs interfaces are built by the nx-crypto driver, built in | |
| arch/powerpc/crypto/nx. | |
| Error Detection | |
| =============== | |
| errors: | |
| - A u32 providing a total count of errors since the driver was loaded. The | |
| only errors counted here are those returned from the hcall, H_COP_OP. | |
| last_error: | |
| - The most recent non-zero return code from the H_COP_OP hcall. -EBUSY is not | |
| recorded here (the hcall will retry until -EBUSY goes away). | |
| last_error_pid: | |
| - The process ID of the process who received the most recent error from the | |
| hcall. | |
| Device Use | |
| ========== | |
| aes_bytes: | |
| - The total number of bytes encrypted using AES in any of the driver's | |
| supported modes. | |
| aes_ops: | |
| - The total number of AES operations submitted to the hardware. | |
| sha256_bytes: | |
| - The total number of bytes hashed by the hardware using SHA-256. | |
| sha256_ops: | |
| - The total number of SHA-256 operations submitted to the hardware. | |
| sha512_bytes: | |
| - The total number of bytes hashed by the hardware using SHA-512. | |
| sha512_ops: | |
| - The total number of SHA-512 operations submitted to the hardware. |